"a format of" is correct and usable in written English.
You can use it to refer to a particular way or style in which something is presented. For example, "We used a format of short answer questions for the quiz".
And we've now gone into a format of playing the same songs all the time.
Every song cleaves to a format of clipped guitar chords and drawled vocals laid over electronic percussion.
Each of the five acts of "Orfeo" has a compositional integrity, a format of recitative, arias, songs, choruses and dance interludes that actually enhances the dramatic impact.
On consecutive days, March 2, 3 and 4, 2001, at Carnegie Hall, the sides face each other in a format of rare concentration and potency.
He eventually settled on a format of paint and ink on plywood with which he depicts spirits and fantastic animals in intricate nets of color and line.
Other magazines, including Club International, Mayfair and Escort, would also be published by Raymond, following a format of porn presented as glossy Sunday supplement.
Mr. Ivanov said he was pleased with talks on Russia's deeper integration into the North Atlantic Treaty Organization, and with how he and Mr. Rumsfeld had "discussed ways to enhance our relations in a format of 20".
He added: "The IOC are quite keen for cricket to be involved but it must be treated seriously and not Under-23s or a format of the game that is not taken seriously.
In the early 1800's, Brewster developed a format of half-length portraits, which took less work, were probably more economical for his patrons and were better suited to his limited abilities.
By the 1880s a format of 30 moves in two hours became popular, succeeded by 36 moves in two hours in the 1920s and then 40 moves in two and a half hours after World War II.
In short, what is being proposed is a format of the EU that still benefits large corporations – setting up their affairs to sell in the UK but pay tax in Luxembourg, merging so that they can create European oligopolies in energy, media and travel and a dogged resistance of regulating the financial sector – but no longer affords any protection to its citizens.
